<!DOCTYPE html> <meta charset="utf-8"> <title>href - pattern element reference</title> <body> <svg width="300" height="300" viewBox="0 0 300 300" xmlns:xlink="http://www.w3.org/1999/xlink"> <pattern id="Pattern" x="0" y="0" width=".25" height=".25"> <rect x="0" y="0" width="25" height="25" fill="skyblue"/> <circle cx="25" cy="25" r="20" fill="green" fill-opacity="0.5"/> </pattern> <rect fill="url(#Pattern)" stroke="black" x="0" y="0" width="200" height="200"/> </svg> </body>